1: <?php
2:
3: /**
4: * Primitive email validation class based on the regexp found at
5: * http://www.regular-expressions.info/email.html
6: */
7: class HTMLPurifier_AttrDef_URI_Email_SimpleCheck extends HTMLPurifier_AttrDef_URI_Email
8: {
9:
10: /**
11: * @param string $string
12: * @param HTMLPurifier_Config $config
13: * @param HTMLPurifier_Context $context
14: * @return bool|string
15: */
16: public function validate($string, $config, $context)
17: {
18: // no support for named mailboxes i.e. "Bob <bob@example.com>"
19: // that needs more percent encoding to be done
20: if ($string == '') {
21: return false;
22: }
23: $string = trim($string);
24: $result = preg_match('/^[A-Z0-9._%-]+@[A-Z0-9.-]+\.[A-Z]{2,4}$/i', $string);
25: return $result ? $string : false;
26: }
27: }
28:
29: // vim: et sw=4 sts=4
30: